Phenanthroline ligand-ferrous metal complex and preparation method thereof

Abstract

The invention discloses a phenanthroline ligand-ferrous metal complex. The phenanthroline ligand-ferrous metal complex has a chemical formula of Fe(SCN)2(Phen), in which Phen is phenanthroline. A preparation method of the phenanthroline ligand-ferrous metal complex comprises the following steps: mixing a ligand and a metal salt into a suspension at room temperature, and heating the suspension for reaction by using a hydrothermal reaction kettle. The phenanthroline ligand-ferrous metal complex and the preparation method have the advantages as follows: according to the preparation method, the phenanthroline ligand-ferrous metal complex is synthesized under a solvent thermal condition, so that the preparation method is simple in process, high in yield and good in reproducibility; the phenanthroline ligand-ferrous metal complex can produce a self-rotation conversion phenomenon, and can be widely used as a self-rotation conversion material in the fields of information storage, molecular switches, molecular electronics, optical switches and the like; with constant progress and rapid development of a microelectronic technology, the microelectronic technology can be expected to not only provide a development opportunity for molecular engineering and molecular synthesis, but also have a great significance in improving energy efficiency, reducing the manufacturing cost and the like.

Description

technical field [0001] The invention relates to the field of spin conversion materials, in particular to a divalent iron complex of o-phenanthroline ligands and a preparation method thereof. Background technique [0002] The phenomenon of spin crossing or spin conversion refers to the fact that certain first transition metal ions d n (n = 4-7) complexes, the phenomenon of mutual transition between low-spin state and high-spin state occurs under specific external conditions (such as temperature, pressure, light, etc.). This phenomenon was first discovered in 1931 and has been studied in depth since 1970. However, it was not until 1980 that people realized that spin crossing compounds could be used as molecular materials for memory storage materials and optical switches, which triggered a new wave of research. . [0003] Most of the spin-transition compounds reported so far contain Fe II and Fe III complexes with a small amount of Co II , containing a very small amount ...

AI Technical Summary

Problems solved by technology

[0006] The preparation method of the commonly used o-phenanthroline ligand divalent iron complexes reported in the literature at present adopts a reflux reaction under nitrogen protection, and then volatilizes the solvent to obtain the synthetic method of the crystal. This method has complex reactions, divalent iron Technical defects such as easy oxidation, low yield and poor controllability

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